HP 4620 User Manual
Page 110
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The phone line connection might be noisy. Phone lines with poor sound quality
(noise) can cause faxing problems. Check the sound quality of the phone line
by plugging a phone into the telephone wall jack and listening for static or other
noise. If you hear noise, turn Error Correction Mode (ECM) off and try faxing
again. For information about changing ECM, see Set the Error Correction
Mode. If the problem persists, contact your telephone company.
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If you are using a digital subscriber line (DSL) service, make sure that you have
a DSL filter connected or you cannot fax successfully. For more information,
see Case B: Set up the printer with DSL.
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Make sure the printer is not connected to a telephone wall jack that is set up for
digital phones. To check if your phone line is digital, connect a regular analog
phone to the line and listen for a dial tone. If you do not hear a normal sounding
dial tone, it might be a phone line set up for digital phones.
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If you are using either a private branch exchange (PBX) or an integrated
services digital network (ISDN) converter/terminal adapter, make sure the
printer is connected to the correct port and the terminal adapter is set to the
correct switch type for your country/region, if possible. For more information,
see Case C: Set up the printer with a PBX phone system or an ISDN line.
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If the printer shares the same phone line with a DSL service, the DSL modem
might not be grounded correctly. If the DSL modem is not grounded correctly, it
can create noise on the phone line. Phone lines with poor sound quality (noise)
can cause faxing problems. You can check the sound quality of the phone line
by plugging a phone into the telephone wall jack and listening for static or other
noise. If you hear noise, turn off your DSL modem and completely remove
power for at least 15 minutes. Turn the DSL modem back on and listen to the
dial tone again.
NOTE: You might notice static on the phone line again in the future. If the
printer stops sending and receiving faxes, repeat this process.
If the phone line is still noisy, contact your telephone company. For information
on turning your DSL modem off, contact your DSL provider for support.
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If you are using a phone splitter, this can cause faxing problems. (A splitter is
a two-cord connector that plugs into a telephone wall jack.) Try removing the
splitter and connecting the printer directly to the telephone wall jack.
The printer is having problems sending a manual fax
Solution:
NOTE: This possible solution applies only in the countries/regions that receive
a 2-wire phone cord in the box with the printer, including: Argentina, Australia,
Brazil, Canada, Chile, China, Colombia, Greece, India, Indonesia, Ireland,
Japan, Korea, Latin America, Malaysia, Mexico, Philippines, Poland, Portugal,
Russia, Saudi Arabia, Singapore, Spain, Taiwan, Thailand, USA, Venezuela,
and Vietnam.
Chapter 8
106
Solve a problem